nand-ecoscentric: packages/io/flash/current/src/flash.c annotate

annotate packages/io/flash/current/src/flash.c @ 3403:8c8767bb9a62 default tip

devs/nand/micron_mt29: Remove defunct references (in comments) to mt29f2g08_oob_ecc.

author	Ross Younger <wry@ecoscentric.com>
date	Sun, 18 Jan 2015 17:59:01 +1300
parents	ccce4b32433a
children

rev	line source
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	1 //==========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	2 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	3 // flash.c
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	4 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	5 // Flash programming
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	6 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	7 //==========================================================================
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	8 // ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	9 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	10 // This file is part of eCos, the Embedded Configurable Operating System.
2816 422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	11 // Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	12 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	13 // eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	14 // the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	15 // Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	16 // version.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	17 //
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	18 // eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	21 // for more details.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	22 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	23 // You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	26 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	27 // As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	28 // macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	29 // and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	30 // this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	31 // the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	32 // must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	33 // General Public License v2.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	34 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	35 // This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	36 // on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	37 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2633 diff changeset	38 // ####ECOSGPLCOPYRIGHTEND####
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	39 //==========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	40 //#####DESCRIPTIONBEGIN####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	41 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	42 // Author(s): gthomas
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	43 // Contributors: gthomas, Andrew Lunn, Bart Veer
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	44 // Date: 2000-07-26
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	45 // Purpose:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	46 // Description:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	47 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	48 //####DESCRIPTIONEND####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	49 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	50 //==========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	51
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	52 #include <pkgconf/system.h>
77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	53 #include <pkgconf/io_flash.h>
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	54 #ifdef CYGPKG_KERNEL
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	55 #include <cyg/kernel/kapi.h>
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	56 #endif
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	57 #include <cyg/hal/hal_arch.h>
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	58 #include <cyg/hal/hal_intr.h>
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	59 #include <cyg/hal/hal_cache.h>
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	60 #include <cyg/hal/hal_tables.h>
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	61 #include <cyg/infra/cyg_ass.h>
191 678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST jlarmour parents: 177 diff changeset	62 #include <string.h>
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	63
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	64 #include <cyg/io/flash.h>
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	65 #include <cyg/io/flash_dev.h>
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	66 #include "flash_legacy.h"
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	67
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 141 diff changeset	68 // When this flag is set, do not actually jump to the relocated code.
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	69 // This can be used for running the function in place (RAM startup
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	70 // only), allowing calls to diag_printf() and similar.
136 a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT jlarmour parents: 121 diff changeset	71 #undef RAM_FLASH_DEV_DEBUG
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT jlarmour parents: 121 diff changeset	72 #if !defined(CYG_HAL_STARTUP_RAM) && defined(RAM_FLASH_DEV_DEBUG)
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT jlarmour parents: 121 diff changeset	73 # warning "Can only enable the flash debugging when configured for RAM startup"
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT jlarmour parents: 121 diff changeset	74 #endif
a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT jlarmour parents: 121 diff changeset	75
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	76 // Optional verbosity. Using a macro here avoids lots of ifdefs in the
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	77 // rest of the code.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	78 #ifdef CYGSEM_IO_FLASH_CHATTER
2816 422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	79 # define CHATTER(_dev_, _fmt_, ...) CYG_MACRO_START \
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	80 if ((_dev_)->pf) \
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	81 (*(_dev_)->pf)((_fmt_), ## __VA_ARGS__); \
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	82 CYG_MACRO_END
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	83 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	84 # define CHATTER(_dev_, _fmt_, ...) CYG_EMPTY_STATEMENT
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	85 #endif
1400 707a873489c8 * src/flash.c: gcc 3.x vs gcc 2.x problems. asl parents: 1389 diff changeset	86
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	87 // Per-thread locking. Again using macros avoids lots of ifdefs
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	88 #ifdef CYGPKG_KERNEL
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	89 # define LOCK_INIT(_dev_) cyg_mutex_init(&((_dev_)->mutex))
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	90 # define LOCK(_dev_) cyg_mutex_lock(&((_dev_)->mutex))
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	91 # define UNLOCK(_dev_) cyg_mutex_unlock(&((_dev_)->mutex))
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	92 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	93 # define LOCK_INIT(_dev_) CYG_EMPTY_STATEMENT
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	94 # define LOCK(_dev_) CYG_EMPTY_STATEMENT
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	95 # define UNLOCK(_dev_) CYG_EMPTY_STATEMENT
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	96 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	97
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	98 // Software write-protect. Very rarely used.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	99 #ifdef CYGSEM_IO_FLASH_SOFT_WRITE_PROTECT
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	100 # define CHECK_SOFT_WRITE_PROTECT(_addr_, _len_) \
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	101 CYG_MACRO_START \
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	102 if (plf_flash_query_soft_wp((_addr_), (_len_))) \
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	103 return CYG_FLASH_ERR_PROTECT; \
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	104 CYG_MACRO_END
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	105 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	106 #define CHECK_SOFT_WRITE_PROTECT(_addr_, _len_) CYG_EMPTY_STATEMENT
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	107 #endif
1400 707a873489c8 * src/flash.c: gcc 3.x vs gcc 2.x problems. asl parents: 1389 diff changeset	108
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	109 // Has the FLASH IO library been initialised?
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	110 static bool init;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	111
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	112 // This array contains entries for all flash devices that are
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	113 // installed in the system.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	114 __externC struct cyg_flash_dev cyg_flashdevtab[];
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	115 CYG_HAL_TABLE_BEGIN(cyg_flashdevtab, cyg_flashdev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	116
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	117 // end of the flashdev table
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	118 __externC struct cyg_flash_dev cyg_flashdevtab_end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	119 CYG_HAL_TABLE_END(cyg_flashdevtab_end, cyg_flashdev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	120
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	121 #if (1 == CYGHWR_IO_FLASH_DEVICE)
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	122
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	123 // Optimize the code for a single flash device, which is the common case.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	124 // The flash subsystem must have been initialized, the single device must
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	125 // contain the specified address, and the device itself must have
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	126 // initialized successfully.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	127 static struct cyg_flash_dev*
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	128 find_dev(cyg_flashaddr_t addr, int* stat)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	129 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	130 if (!init) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	131 *stat = CYG_FLASH_ERR_NOT_INIT;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	132 return NULL;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	133 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	134 if (! ((addr >= cyg_flashdevtab[0].start) && (addr <= cyg_flashdevtab[0].end))) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	135 *stat = CYG_FLASH_ERR_INVALID;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	136 return NULL;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	137 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	138 if (! cyg_flashdevtab[0].init) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	139 *stat = CYG_FLASH_ERR_NOT_INIT;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	140 return NULL;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	141 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	142 return &cyg_flashdevtab[0];
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	143 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	144
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	145 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	146
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	147 // There are multiple devices. For convenience these are kept in a
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	148 // linked list, sorted by address. This is the head of the list
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	149 static struct cyg_flash_dev *flash_head = NULL;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	150
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	151 static bool flash_sort_and_check(void)
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 151 diff changeset	152 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	153 bool moved;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	154 struct cyg_flash_dev dev, *previous_next;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	155
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	156 // Place all devices that initialised on the list, unsorted for now.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	157 for (dev = &cyg_flashdevtab[0]; dev != &cyg_flashdevtab_end; dev++) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	158 if (dev->init) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	159 dev->next = flash_head;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	160 flash_head = dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	161 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	162 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	163
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	164 // If there are no valid devices, abort. This might happen if
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	165 // all drivers failed to initialize.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	166 if (flash_head == NULL) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	167 return false;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	168 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	169
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	170 // Sort the linked list into ascending order of flash address. Use a
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	171 // primitive ripple sort, but since we don't expect to have many
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	172 // devices this should be OK. This loop may run safely with just one
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	173 // entry on the list.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	174 do {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	175 moved=false;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	176 for (dev=flash_head, previous_next=&flash_head;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	177 dev->next;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	178 previous_next = &dev->next, dev=dev->next ){
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	179 if (dev->start > dev->next->start) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	180 *previous_next=dev->next;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	181 dev->next = (*previous_next)->next;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	182 (*previous_next)->next = dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	183 moved=true;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	184 break;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	185 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	186 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	187 } while (moved);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	188
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	189 // Now walk the linked list and see if there are any overlaps in the
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	190 // addresses the devices claim to use using.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	191 for (dev=flash_head; dev->next; dev=dev->next){
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	192 if (dev->end >= dev->next->start)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	193 return false;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	194 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	195 return true;
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 151 diff changeset	196 }
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 151 diff changeset	197
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	198 // Find the device at the specified address, if any.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	199 static struct cyg_flash_dev*
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	200 find_dev(cyg_flashaddr_t addr, int* stat)
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 141 diff changeset	201 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	202 struct cyg_flash_dev* dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	203 if (!init) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	204 *stat = CYG_FLASH_ERR_NOT_INIT;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	205 return NULL;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	206 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	207 for (dev = flash_head; dev; dev = dev->next) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	208 if ((dev->start <= addr) && (addr <= dev->end)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	209 return dev;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	210 }
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	211 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	212 *stat = CYG_FLASH_ERR_INVALID;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	213 return NULL;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	214 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	215
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	216 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	217
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	218 // Initialise all registered device. Any device that fails to
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	219 // initialise we leave dev->init as false. Then sort the devices into
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	220 // ascending order of address and put them into a linked list. Lastly
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	221 // check if we have any overlap of the addresses.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	222 __externC int
2826 ccce4b32433a * include/flash.h: Reinstate printf arg to cyg_flash_init, but it jlarmour parents: 2816 diff changeset	223 cyg_flash_init(cyg_flash_printf *pf)
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	224 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	225 int err;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	226 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	227
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	228 CYG_ASSERT(&(cyg_flashdevtab[CYGHWR_IO_FLASH_DEVICE]) == &cyg_flashdevtab_end, "incorrect number of flash devices");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	229
2826 ccce4b32433a * include/flash.h: Reinstate printf arg to cyg_flash_init, but it jlarmour parents: 2816 diff changeset	230 // In case the printf function has changed.
ccce4b32433a * include/flash.h: Reinstate printf arg to cyg_flash_init, but it jlarmour parents: 2816 diff changeset	231 if (NULL != pf)
ccce4b32433a * include/flash.h: Reinstate printf arg to cyg_flash_init, but it jlarmour parents: 2816 diff changeset	232 cyg_flash_set_global_printf(pf);
ccce4b32433a * include/flash.h: Reinstate printf arg to cyg_flash_init, but it jlarmour parents: 2816 diff changeset	233
2633 592d727733df * src/flash.c (cyg_flash_init): Allow repeated calls to jlarmour parents: 2626 diff changeset	234 if (init) {
592d727733df * src/flash.c (cyg_flash_init): Allow repeated calls to jlarmour parents: 2626 diff changeset	235 return CYG_FLASH_ERR_OK;
592d727733df * src/flash.c (cyg_flash_init): Allow repeated calls to jlarmour parents: 2626 diff changeset	236 }
592d727733df * src/flash.c (cyg_flash_init): Allow repeated calls to jlarmour parents: 2626 diff changeset	237
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	238 for (dev = &cyg_flashdevtab[0]; dev != &cyg_flashdevtab_end; dev++) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	239 LOCK_INIT(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	240
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	241 err = dev->funs->flash_init(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	242 if (err != CYG_FLASH_ERR_OK) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	243 continue;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	244 }
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	245 CYG_ASSERT(dev->funs, "No flash functions");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	246 CYG_ASSERT(dev->num_block_infos, "No number of block infos");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	247 CYG_ASSERT(dev->block_info, "No block infos");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	248 CYG_ASSERT(!(((cyg_flashaddr_t)dev->block_info >= dev->start) &&
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	249 ((cyg_flashaddr_t)dev->block_info < dev->end)),
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	250 "Block info is in the flash");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	251 CYG_ASSERT(dev->funs->flash_erase_block, "No erase function");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	252 CYG_ASSERT(dev->funs->flash_program, "No program function");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	253 #ifdef CYGDBG_USE_ASSERTS
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	254 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	255 int i;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	256 cyg_flashaddr_t addr = dev->start;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	257 for (i = 0; i < dev->num_block_infos; i++) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	258 addr += dev->block_info[i].block_size * dev->block_info[i].blocks;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	259 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	260 CYG_ASSERT(dev->end == addr-1, "Invalid end address");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	261 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	262 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	263 dev->init = true;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	264 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	265
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	266 #if (1 == CYGHWR_IO_FLASH_DEVICE)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	267 // Make sure there is one device, otherwise we could end up
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	268 // accessing a non-existent cyg_flash_dev structure.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	269 if (&(cyg_flashdevtab[0]) == &cyg_flashdevtab_end) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	270 return CYG_FLASH_ERR_INVALID;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	271 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	272 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	273 // Place the devices on a sorted linked list and check that there
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	274 // are no overlaps in the address space.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	275 if (! flash_sort_and_check() ) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	276 return CYG_FLASH_ERR_INVALID;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	277 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	278 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	279
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	280 // Only mark the flash subsystem as initialized if the world is
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	281 // consistent.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	282 init = true;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	283 return CYG_FLASH_ERR_OK;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	284 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	285
2816 422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	286 // Set a printf function to use for a particular device,
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	287 // which is associated with the supplied base address
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	288 __externC int
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	289 cyg_flash_set_printf(const cyg_flashaddr_t flash_base,
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	290 cyg_flash_printf *pf)
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	291 {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	292 struct cyg_flash_dev *dev;
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	293 int stat = CYG_FLASH_ERR_OK;
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	294
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	295 dev = find_dev(flash_base, &stat);
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	296 if (dev) {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	297 // Locking may seem like overkill, but if there's any chance of CHATTER
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	298 // mid-change then bad things are theoretically possible. But we only
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	299 // lock if this device is usable, i.e. it's been initialised.
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	300 if (dev->init) {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	301 LOCK(dev);
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	302 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	303 dev->pf = pf;
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	304 if (dev->init) {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	305 UNLOCK(dev);
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	306 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	307 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	308 return stat;
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	309 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	310
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	311 // Set a printf function to use for all flash devices.
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	312 // This overrides any previously set printf function.
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	313 __externC void
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	314 cyg_flash_set_global_printf(cyg_flash_printf *pf)
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	315 {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	316 struct cyg_flash_dev *dev;
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	317 for (dev = &cyg_flashdevtab[0]; dev != &cyg_flashdevtab_end; dev++) {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	318 // Locking may seem like overkill, but if there's any chance of CHATTER
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	319 // mid-change then bad things are theoretically possible. But we only
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	320 // lock if this device is usable, i.e. it's been initialised.
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	321 if (dev->init) {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	322 LOCK(dev);
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	323 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	324 dev->pf = pf;
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	325 if (dev->init) {
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	326 UNLOCK(dev);
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	327 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	328 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	329 }
422d0a343b4d * include/flash.h: Modest API change: cyg_flash_init() no longer jlarmour parents: 2729 diff changeset	330
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	331 // Is the address within one of the flash drivers?
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	332 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	333 cyg_flash_verify_addr(const cyg_flashaddr_t address)
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	334 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	335 int stat = CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	336 (void) find_dev(address, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	337 return stat;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	338 }
157 b65ec671dd4c Merge from eCos master repository on 2001-04-06-18:28:36-BST jlarmour parents: 156 diff changeset	339
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	340 // Return information about the Nth driver
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	341 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	342 cyg_flash_get_info(cyg_uint32 Nth, cyg_flash_info_t * info)
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	343 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	344 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	345
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	346 if (!init) return CYG_FLASH_ERR_NOT_INIT;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	347
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	348 #if (1 == CYGHWR_IO_FLASH_DEVICE)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	349 if ((0 == Nth) && cyg_flashdevtab[0].init) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	350 dev = &(cyg_flashdevtab[0]);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	351 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	352 return CYG_FLASH_ERR_INVALID;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	353 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	354 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	355 // Only initialized devices are on the list.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	356 for (dev = flash_head; dev && Nth; dev=dev->next, Nth--)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	357 ;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	358 if (!dev) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	359 return CYG_FLASH_ERR_INVALID;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	360 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	361 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	362 info->start = dev->start;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	363 info->end = dev->end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	364 info->num_block_infos = dev->num_block_infos;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	365 info->block_info = dev->block_info;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	366 return CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	367 }
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	368
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	369 // Return information about the flash at the given address
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	370 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	371 cyg_flash_get_info_addr(const cyg_flashaddr_t flash_base, cyg_flash_info_t * info)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	372 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	373 struct cyg_flash_dev *dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	374 int stat = CYG_FLASH_ERR_OK;
174 38892b97b685 Merge from eCos master repository on 2001-07-28-00:17:32-BST jlarmour parents: 163 diff changeset	375
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	376 dev = find_dev(flash_base, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	377 if (dev) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	378 info->start = dev->start;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	379 info->end = dev->end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	380 info->num_block_infos = dev->num_block_infos;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	381 info->block_info = dev->block_info;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	382 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	383 return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	384 }
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	385
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	386 #ifdef CYGPKG_KERNEL
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	387 // Lock the mutex's for a range of addresses
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	388 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	389 cyg_flash_mutex_lock(const cyg_flashaddr_t from, size_t len)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	390 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	391 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	392 int stat = CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	393
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	394 dev = find_dev(from, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	395 if (dev) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	396 LOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	397 if (len > (dev->end + 1 - from)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	398 stat = cyg_flash_mutex_lock(dev->end + 1, len - (dev->end + 1 - from));
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	399 if (CYG_FLASH_ERR_OK != stat) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	400 // Something went wrong, unlock what we just locked
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	401 UNLOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	402 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	403 }
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	404 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	405 return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	406 }
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	407
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	408 // Unlock the mutex's for a range of addresses
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	409 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	410 cyg_flash_mutex_unlock(const cyg_flashaddr_t from, size_t len)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	411 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	412 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	413 int stat = CYG_FLASH_ERR_OK;
195 67850532eebb Merge from eCos master repository on 2001-11-02-06:43:03-GMT jlarmour parents: 191 diff changeset	414
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	415 dev = find_dev(from, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	416 if (dev) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	417 UNLOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	418 if (len > (dev->end + 1 - from)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	419 stat = cyg_flash_mutex_lock(dev->end + 1, len - (dev->end + 1 - from));
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	420 if (CYG_FLASH_ERR_OK != stat) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	421 // Something went wrong, relock what we just unlocked. This may not
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	422 // be worth it since things must be pretty messed up, and could
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	423 // conceivably end in deadlock if there is a concurrent call to
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	424 // cyg_flash_mutex_lock();
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	425 LOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	426 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	427 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	428 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	429 return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	430 }
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	431 #endif
dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	432
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	433 // Return the size of the block which is at the given address
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	434 static size_t
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	435 flash_block_size(struct cyg_flash_dev *dev, const cyg_flashaddr_t addr)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	436 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	437 int i;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	438 size_t offset;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	439
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	440 CYG_ASSERT((addr >= dev->start) && (addr <= dev->end), "Not inside device");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	441
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	442 offset = addr - dev->start;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	443 for (i=0; i < dev->num_block_infos; i++) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	444 if (offset < (dev->block_info[i].blocks * dev->block_info[i].block_size))
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	445 return dev->block_info[i].block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	446 offset = offset -
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	447 (dev->block_info[i].blocks * dev->block_info[i].block_size);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	448 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	449 CYG_FAIL("Programming error");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	450 return 0;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	451 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	452
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	453 // Return the size of the block which is at the given address
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	454 __externC size_t
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	455 cyg_flash_block_size(const cyg_flashaddr_t flash_base)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	456 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	457 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	458 int stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	459
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	460 dev = find_dev(flash_base, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	461 if (!dev) return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	462 return flash_block_size(dev, flash_base);
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	463 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	464
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	465 // Return the first address of a block. The flash might not be aligned
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	466 // in terms of its block size. So we have to be careful and use
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	467 // offsets.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	468 static inline cyg_flashaddr_t
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	469 flash_block_begin(cyg_flashaddr_t addr, struct cyg_flash_dev *dev)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	470 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	471 size_t block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	472 cyg_flashaddr_t offset;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	473
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	474 block_size = flash_block_size(dev, addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	475
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	476 offset = addr - dev->start;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	477 offset = (offset / block_size) * block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	478 return offset + dev->start;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	479 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	480
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	481
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	482 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	483 cyg_flash_erase(cyg_flashaddr_t flash_base,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	484 size_t len,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	485 cyg_flashaddr_t *err_address)
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	486 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	487 cyg_flashaddr_t block, end_addr;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	488 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	489 size_t erase_count;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	490 int stat = CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	491 HAL_FLASH_CACHES_STATE(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	492
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	493 dev = find_dev(flash_base, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	494 if (!dev) return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	495
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	496 CHECK_SOFT_WRITE_PROTECT(flash_base, len);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	497
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	498 LOCK(dev);
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	499
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	500 // Check whether or not we are going past the end of this device, on
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	501 // to the next one. If so the next device will be handled by a
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	502 // recursive call later on.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	503 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	504 end_addr = dev->end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	505 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	506 end_addr = flash_base + len - 1;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	507 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	508 // erase can only happen on a block boundary, so adjust for this
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	509 block = flash_block_begin(flash_base, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	510 erase_count = (end_addr + 1) - block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	511
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	512 CHATTER(dev, "... Erase from %p-%p: ", (void)block, (void)end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	513
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	514 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	515 FLASH_Enable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	516 while (erase_count > 0) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	517 int i;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	518 unsigned char *dp;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	519 bool erased = false;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	520 size_t block_size = flash_block_size(dev, block);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	521
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	522 // Pad to the block boundary, if necessary
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	523 if (erase_count < block_size) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	524 erase_count = block_size;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	525 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	526
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	527 // If there is a read function it probably means the flash
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	528 // cannot be read directly.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	529 if (!dev->funs->flash_read) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	530 erased = true;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	531 dp = (unsigned char *)block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	532 for (i = 0; i < block_size; i++) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	533 if (*dp++ != (unsigned char)0xFF) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	534 erased = false;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	535 break;
174 38892b97b685 Merge from eCos master repository on 2001-07-28-00:17:32-BST jlarmour parents: 163 diff changeset	536 }
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	537 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	538 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	539 if (!erased) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	540 stat = dev->funs->flash_erase_block(dev,block);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	541 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	542 if (CYG_FLASH_ERR_OK != stat) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	543 if (err_address)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	544 *err_address = block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	545 break;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	546 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	547 block += block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	548 erase_count -= block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	549 CHATTER(dev, ".");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	550 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	551 FLASH_Disable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	552 HAL_FLASH_CACHES_ON(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	553 CHATTER(dev, "\n");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	554 UNLOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	555 if (stat != CYG_FLASH_ERR_OK) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	556 return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	557 }
174 38892b97b685 Merge from eCos master repository on 2001-07-28-00:17:32-BST jlarmour parents: 163 diff changeset	558
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	559 // If there are multiple flash devices in series the erase operation
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	560 // may touch successive devices. This can be handled by recursion.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	561 // The stack overheads should be minimal because the number of
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	562 // devices will be small.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	563 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	564 return cyg_flash_erase(dev->end+1,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	565 len - (dev->end + 1 - flash_base),
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	566 err_address);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	567 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	568 return CYG_FLASH_ERR_OK;
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	569 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	570
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	571 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	572 cyg_flash_program(cyg_flashaddr_t flash_base,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	573 const void *ram_base,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	574 size_t len,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	575 cyg_flashaddr_t *err_address)
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	576 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	577 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	578 cyg_flashaddr_t addr, end_addr, block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	579 const unsigned char * ram = ram_base;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	580 size_t write_count, offset;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	581 int stat = CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	582 HAL_FLASH_CACHES_STATE(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	583
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	584 dev = find_dev(flash_base, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	585 if (!dev) return stat;
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	586
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	587 CHECK_SOFT_WRITE_PROTECT(flash_base, len);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	588
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	589 LOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	590 addr = flash_base;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	591 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	592 end_addr = dev->end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	593 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	594 end_addr = flash_base + len - 1;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	595 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	596 write_count = (end_addr + 1) - flash_base;
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	597
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	598 // The first write may be in the middle of a block. Do the necessary
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	599 // adjustment here rather than inside the loop.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	600 block = flash_block_begin(flash_base, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	601 if (addr == block) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	602 offset = 0;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	603 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	604 offset = addr - block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	605 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	606
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	607 CHATTER(dev, "... Program from %p-%p to %p: ", ram_base, ((CYG_ADDRESS)ram_base)+write_count, addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	608
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	609 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	610 FLASH_Enable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	611 while (write_count > 0) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	612 size_t block_size = flash_block_size(dev, addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	613 size_t this_write;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	614 if (write_count > (block_size - offset)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	615 this_write = block_size - offset;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	616 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	617 this_write = write_count;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	618 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	619 // Only the first block may need the offset.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	620 offset = 0;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	621
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	622 stat = dev->funs->flash_program(dev, addr, ram, this_write);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	623 #ifdef CYGSEM_IO_FLASH_VERIFY_PROGRAM
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	624 if (CYG_FLASH_ERR_OK == stat) // Claims to be OK
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	625 if (!dev->funs->flash_read && memcmp((void *)addr, ram, this_write) != 0) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	626 stat = CYG_FLASH_ERR_DRV_VERIFY;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	627 CHATTER(dev, "V");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	628 }
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	629 #endif
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	630 if (CYG_FLASH_ERR_OK != stat) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	631 if (err_address)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	632 *err_address = addr;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	633 break;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	634 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	635 CHATTER(dev, ".");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	636 write_count -= this_write;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	637 addr += this_write;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	638 ram += this_write;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	639 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	640 FLASH_Disable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	641 HAL_FLASH_CACHES_ON(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	642 CHATTER(dev, "\n");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	643 UNLOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	644 if (stat != CYG_FLASH_ERR_OK) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	645 return (stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	646 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	647 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	648 return cyg_flash_program(dev->end+1, ram,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	649 len - (dev->end + 1 - flash_base),
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	650 err_address);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	651 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	652 return CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	653 }
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	654
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	655 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	656 cyg_flash_read(const cyg_flashaddr_t flash_base,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	657 void *ram_base,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	658 size_t len,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	659 cyg_flashaddr_t *err_address)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	660 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	661 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	662 cyg_flashaddr_t addr, end_addr;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	663 unsigned char * ram = (unsigned char *)ram_base;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	664 size_t read_count;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	665 int stat = CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	666
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	667 dev = find_dev(flash_base, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	668 if (!dev) return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	669
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	670 LOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	671 addr = flash_base;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	672 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	673 end_addr = dev->end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	674 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	675 end_addr = flash_base + len - 1;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	676 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	677 read_count = (end_addr + 1) - flash_base;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	678
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	679 // CHATTER(dev, "... Read from %p-%p to %p: ", addr, end_addr, ram_base);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	680
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	681 // If the flash is directly accessible, just read it in one go. This
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	682 // still happens with the mutex locked to protect against concurrent
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	683 // programs/erases.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	684 if (! dev->funs->flash_read) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	685 memcpy(ram, (void*)addr, read_count);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	686 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	687 #ifndef CYGHWR_IO_FLASH_INDIRECT_READS
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	688 CYG_FAIL("read function supplied but indirect reads not enabled");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	689 stat = CYG_FLASH_ERR_PROTOCOL;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	690 if (err_address) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	691 *err_address = addr;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	692 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	693 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	694 // We have to indirect through the device driver.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	695 // The first read may be in the middle of a block. Do the necessary
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	696 // adjustment here rather than inside the loop.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	697 size_t offset;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	698 cyg_flashaddr_t block = flash_block_begin(flash_base, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	699 HAL_FLASH_CACHES_STATE(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	700 if (addr == block) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	701 offset = 0;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	702 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	703 offset = addr - block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	704 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	705 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	706 FLASH_Enable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	707 while (read_count > 0) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	708 size_t block_size = flash_block_size(dev, addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	709 size_t this_read;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	710 if (read_count > (block_size - offset)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	711 this_read = block_size - offset;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	712 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	713 this_read = read_count;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	714 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	715 // Only the first block may need the offset
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	716 offset = 0;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	717
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	718 stat = dev->funs->flash_read(dev, addr, ram, this_read);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	719 if (CYG_FLASH_ERR_OK != stat && err_address) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	720 *err_address = addr;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	721 break;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	722 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	723 // CHATTER(dev, ".");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	724 read_count -= this_read;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	725 addr += this_read;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	726 ram += this_read;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	727 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	728 FLASH_Disable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	729 HAL_FLASH_CACHES_ON(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	730 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	731 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	732 // CHATTER(dev, "\n");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	733 UNLOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	734 if (stat != CYG_FLASH_ERR_OK) {
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	735 return (stat);
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	736 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	737 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	738 return cyg_flash_read(dev->end+1, ram,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	739 len - (dev->end + 1 - flash_base),
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	740 err_address);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	741 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	742 return CYG_FLASH_ERR_OK;
1223 dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	743 }
dbcfe4e0dbd2 New platform - TAMS MOAB - and generic changes to support it gthomas parents: 210 diff changeset	744
177 4c750ce71ae3 Merge from eCos master repository on 2001-08-10-19:22:57-BST jlarmour parents: 174 diff changeset	745 #ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	746 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	747 cyg_flash_lock(const cyg_flashaddr_t flash_base,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	748 size_t len,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	749 cyg_flashaddr_t *err_address)
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	750 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	751 cyg_flashaddr_t block, end_addr;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	752 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	753 size_t lock_count;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	754 int stat = CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	755 HAL_FLASH_CACHES_STATE(d_cache, i_cache);
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	756
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	757 dev = find_dev(flash_base, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	758 if (!dev) return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	759 if (!dev->funs->flash_block_lock) return CYG_FLASH_ERR_INVALID;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	760
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	761 CHECK_SOFT_WRITE_PROTECT(flash_base, len);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	762
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	763 LOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	764 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	765 end_addr = dev->end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	766 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	767 end_addr = flash_base + len - 1;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	768 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	769 block = flash_block_begin(flash_base, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	770 lock_count = (end_addr + 1) - block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	771
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	772 CHATTER(dev, "... Locking from %p-%p: ", (void)block, (void)end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	773
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	774 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	775 FLASH_Enable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	776 while (lock_count > 0) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	777 size_t block_size = flash_block_size(dev, block);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	778 if (lock_count < block_size) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	779 lock_count = block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	780 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	781 stat = dev->funs->flash_block_lock(dev,block);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	782
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	783 if (CYG_FLASH_ERR_OK != stat && err_address) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	784 *err_address = block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	785 break;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	786 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	787 block += block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	788 lock_count -= block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	789 CHATTER(dev, ".");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	790 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	791 FLASH_Disable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	792 HAL_FLASH_CACHES_ON(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	793 CHATTER(dev, "\n");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	794 UNLOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	795 if (stat != CYG_FLASH_ERR_OK) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	796 return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	797 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	798
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	799 // Recurse if necessary for the next device
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	800 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	801 return cyg_flash_lock(dev->end+1,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	802 len - (dev->end + 1 - flash_base),
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	803 err_address);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	804 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	805
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	806 return CYG_FLASH_ERR_OK;
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	807 }
77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	808
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	809 __externC int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	810 cyg_flash_unlock(const cyg_flashaddr_t flash_base,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	811 size_t len,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	812 cyg_flashaddr_t *err_address)
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	813 {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	814 cyg_flashaddr_t block, end_addr;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	815 struct cyg_flash_dev * dev;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	816 size_t unlock_count;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	817 int stat = CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	818 HAL_FLASH_CACHES_STATE(d_cache, i_cache);
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	819
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	820 dev = find_dev(flash_base, &stat);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	821 if (!dev) return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	822 if (!dev->funs->flash_block_unlock) return CYG_FLASH_ERR_INVALID;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 195 diff changeset	823
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	824 CHECK_SOFT_WRITE_PROTECT(flash_base, len);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	825
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	826 LOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	827 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	828 end_addr = dev->end;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	829 } else {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	830 end_addr = flash_base + len - 1;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	831 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	832 block = flash_block_begin(flash_base, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	833 unlock_count = (end_addr + 1) - block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	834
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	835 CHATTER(dev, "... Unlocking from %p-%p: ", (void)block, (void)end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	836
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	837 HAL_FLASH_CACHES_OFF(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	838 FLASH_Enable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	839 while (unlock_count > 0) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	840 size_t block_size = flash_block_size(dev, block);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	841 if (unlock_count < block_size) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	842 unlock_count = block_size;
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	843 }
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	844 stat = dev->funs->flash_block_unlock(dev,block);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	845
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	846 if (CYG_FLASH_ERR_OK != stat && err_address) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	847 *err_address = block;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	848 break;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	849 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	850 block += block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	851 unlock_count -= block_size;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	852
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	853 CHATTER(dev, ".");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	854 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	855 FLASH_Disable(flash_base, end_addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	856 HAL_FLASH_CACHES_ON(d_cache, i_cache);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	857 CHATTER(dev, "\n");
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	858 UNLOCK(dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	859 if (stat != CYG_FLASH_ERR_OK) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	860 return stat;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	861 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	862
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	863 // Recurse if necessary for the next device
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	864 if (len > (dev->end + 1 - flash_base)) {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	865 return cyg_flash_lock(dev->end+1,
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	866 len - (dev->end + 1 - flash_base),
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	867 err_address);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	868 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	869 return CYG_FLASH_ERR_OK;
119 77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	870 }
77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	871 #endif
77cec8369160 Merge from eCos master repository on 2000-09-01-07:47:03-BST jlarmour parents: 117 diff changeset	872
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	873 const char *
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	874 cyg_flash_errmsg(const int err)
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	875 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	876 switch (err) {
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	877 case CYG_FLASH_ERR_OK:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	878 return "No error - operation complete";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	879 case CYG_FLASH_ERR_ERASE_SUSPEND:
136 a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT jlarmour parents: 121 diff changeset	880 return "Device is in erase suspend state";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	881 case CYG_FLASH_ERR_PROGRAM_SUSPEND:
136 a9ac27ec7abc Merge from eCos master repository on 2000-11-17-18:24:25-GMT jlarmour parents: 121 diff changeset	882 return "Device is in program suspend state";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	883 case CYG_FLASH_ERR_INVALID:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	884 return "Invalid FLASH address";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	885 case CYG_FLASH_ERR_ERASE:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	886 return "Error trying to erase";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	887 case CYG_FLASH_ERR_LOCK:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	888 return "Error trying to lock/unlock";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	889 case CYG_FLASH_ERR_PROGRAM:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	890 return "Error trying to program";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	891 case CYG_FLASH_ERR_PROTOCOL:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	892 return "Generic error";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	893 case CYG_FLASH_ERR_PROTECT:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	894 return "Device/region is write-protected";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	895 case CYG_FLASH_ERR_NOT_INIT:
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	896 return "FLASH sub-system not initialized";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	897 case CYG_FLASH_ERR_DRV_VERIFY:
143 6b5f480c6929 Merge from eCos master repository on 2000-12-08-02:09:36-GMT jlarmour parents: 141 diff changeset	898 return "Data verify failed after operation";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	899 case CYG_FLASH_ERR_DRV_TIMEOUT:
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 151 diff changeset	900 return "Driver timed out waiting for device";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	901 case CYG_FLASH_ERR_DRV_WRONG_PART:
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 151 diff changeset	902 return "Driver does not support device";
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	903 case CYG_FLASH_ERR_LOW_VOLTAGE:
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: 154 diff changeset	904 return "Device reports low voltage";
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	905 default:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	906 return "Unknown error";
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	907 }
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: diff changeset	908 }
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 143 diff changeset	909
2626 a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	910 // Dummy routines to put into the device function tables, to handle
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	911 // unsupported/unnecessary functionality. For example not all devices
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	912 // support block locking.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	913 //
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	914 // A dummy initialization routine, for platforms where everything is
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	915 // done statically and there is no need to check device ids or
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	916 // anything similar.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	917 int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	918 cyg_flash_devfn_init_nop(struct cyg_flash_dev* dev)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	919 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	920 CYG_UNUSED_PARAM(struct cyg_flash_dev*, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	921 return CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	922 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	923
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	924 // A dummy query routine. The implementation of this is specific to
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	925 // each device driver, so some device drivers may choose to do
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	926 // nothing.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	927 size_t
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	928 cyg_flash_devfn_query_nop(struct cyg_flash_dev* dev, void* data, size_t len)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	929 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	930 CYG_UNUSED_PARAM(struct cyg_flash_dev*, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	931 CYG_UNUSED_PARAM(void*, data);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	932 CYG_UNUSED_PARAM(size_t, len);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	933 return 0;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	934 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	935
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	936 // Dummy lock/unlock routines
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	937 int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	938 cyg_flash_devfn_lock_nop(struct cyg_flash_dev* dev, const cyg_flashaddr_t addr)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	939 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	940 CYG_UNUSED_PARAM(struct cyg_flash_dev*, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	941 CYG_UNUSED_PARAM(cyg_flashaddr_t, addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	942 #if defined(CYGHWR_IO_FLASH_BLOCK_LOCKING) && (1 < CYGHWR_IO_FLASH_DEVICE)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	943 // If we've been built with locking, and there's more than one flash
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	944 // device in the system, then this is probably only being called because
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	945 // we can't tell what devices do and don't support locking, and for a _nop
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	946 // function this is the device that doesn't support locking. So we don't
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	947 // complain if we're asked to.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	948 return CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	949 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	950 return CYG_FLASH_ERR_DRV_WRONG_PART;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	951 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	952 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	953
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	954 int
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	955 cyg_flash_devfn_unlock_nop(struct cyg_flash_dev* dev, const cyg_flashaddr_t addr)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	956 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	957 CYG_UNUSED_PARAM(struct cyg_flash_dev*, dev);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	958 CYG_UNUSED_PARAM(cyg_flashaddr_t, addr);
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	959 #if defined(CYGHWR_IO_FLASH_BLOCK_LOCKING) && (1 < CYGHWR_IO_FLASH_DEVICE)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	960 // If we've been built with locking, and there's more than one flash
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	961 // device in the system, then this is probably only being called because
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	962 // we can't tell what devices do and don't support locking, and for a _nop
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	963 // function this is the device that doesn't support locking. So we don't
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	964 // complain if we're asked to.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	965 return CYG_FLASH_ERR_OK;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	966 #else
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	967 return CYG_FLASH_ERR_DRV_WRONG_PART;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	968 #endif
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	969 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	970
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	971 // On some architectures there are problems calling the .2ram
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	972 // functions from the main ones. Specifically the compiler may issue a
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	973 // short call, even though the flash and ram are too far apart. The
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	974 // solution is to indirect via a function pointer, but the simplistic
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	975 // approach is vulnerable to compiler optimization. Hence the function
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	976 // pointer is passed through an anonymizer.
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	977 void*
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	978 cyg_flash_anonymizer(void* fn)
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	979 {
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	980 return fn;
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	981 }
a2f5434df2cb Merge flashv2 branch to trunk, with eCosCentric additions jlarmour parents: 2142 diff changeset	982
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 143 diff changeset	983 // EOF io/flash/..../flash.c

Mercurial > nand-ecoscentric

annotate packages/io/flash/current/src/flash.c @ 3403:8c8767bb9a62 default tip